This equipment can blow a variety of low-density polyethylene(LDPE), high-density polyethylene(HDPE) and linear low-density polyethylene(LLDPE) plastic film, they are widely used in food department stores, household, chemical, textile, shopping bags and industrial packaging. Cylinder and screw adapt 38CrMoAI alloy material by nitriding precision machining, they have the best wear and corrosion resistance.